1. 13 5月, 2011 2 次提交
  2. 11 6月, 2010 1 次提交
  3. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  4. 25 3月, 2010 1 次提交
  5. 03 6月, 2009 2 次提交
  6. 29 10月, 2008 1 次提交
  7. 17 7月, 2008 2 次提交
  8. 20 6月, 2008 1 次提交
  9. 12 6月, 2008 1 次提交
  10. 29 3月, 2008 1 次提交
  11. 06 3月, 2008 1 次提交
  12. 29 1月, 2008 1 次提交
  13. 16 10月, 2007 1 次提交
    • P
      [IPV4]: Uninline netfilter okfns · 861d0486
      Patrick McHardy 提交于
      Now that we don't pass double skb pointers to nf_hook_slow anymore, gcc
      can generate tail calls for some of the netfilter hook okfn invocations,
      so there is no need to inline the functions anymore. This caused huge
      code bloat since we ended up with one inlined version and one out-of-line
      version since we pass the address to nf_hook_slow.
      
      Before:
         text    data     bss     dec     hex filename
      8997385 1016524  524652 10538561         a0ce41 vmlinux
      
      After:
         text    data     bss     dec     hex filename
      8994009 1016524  524652 10535185         a0c111 vmlinux
      -------------------------------------------------------
        -3376
      
      All cases have been verified to generate tail-calls with and without
      netfilter. The okfns in ipmr and xfrm4_input still remain inline because
      gcc can't generate tail-calls for them.
      Signed-off-by: NPatrick McHardy <kaber@trash.net>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      861d0486
  14. 11 10月, 2007 1 次提交
    • M
      [IPV4] IPSEC: Omit redirect for tunnelled packet. · 3b26a9a6
      Masahide NAKAMURA 提交于
      IPv4 IPsec tunnel gateway incorrectly sends redirect to
      sender if it is onlink host when network device the IPsec tunnelled
      packet is arrived is the same as the one the decapsulated packet
      is sent.
      
      With this patch, it omits to send the redirect when the forwarding
      skbuff carries secpath, since such skbuff should be assumed as
      a decapsulated packet from IPsec tunnel by own.
      
      Request for comments:
      Alternatively we'd have another way to change net/ipv4/route.c
      (__mkroute_input) to use RTCF_DOREDIRECT flag unless skbuff
      has no secpath. It is better than this patch at performance
      point of view because IPv4 redirect judgement is done at
      routing slow-path. However, it should be taken care of resource
      changes between SAD(XFRM states) and routing table. In other words,
      When IPv4 SAD is changed does the related routing entry go to its
      slow-path? If not, it is reasonable to apply this patch.
      Signed-off-by: NMasahide NAKAMURA <nakam@linux-ipv6.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3b26a9a6
  15. 19 7月, 2007 1 次提交
  16. 26 4月, 2007 3 次提交
  17. 15 2月, 2007 1 次提交
    • T
      [PATCH] remove many unneeded #includes of sched.h · cd354f1a
      Tim Schmielau 提交于
      After Al Viro (finally) succeeded in removing the sched.h #include in module.h
      recently, it makes sense again to remove other superfluous sched.h includes.
      There are quite a lot of files which include it but don't actually need
      anything defined in there.  Presumably these includes were once needed for
      macros that used to live in sched.h, but moved to other header files in the
      course of cleaning it up.
      
      To ease the pain, this time I did not fiddle with any header files and only
      removed #includes from .c-files, which tend to cause less trouble.
      
      Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
      arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
      allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
      configs in arch/arm/configs on arm.  I also checked that no new warnings were
      introduced by the patch (actually, some warnings are removed that were emitted
      by unnecessarily included header files).
      Signed-off-by: NTim Schmielau <tim@physik3.uni-rostock.de>
      Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      cd354f1a
  18. 11 2月, 2007 1 次提交
  19. 01 7月, 2006 1 次提交
  20. 13 6月, 2006 1 次提交
  21. 30 8月, 2005 1 次提交
  22. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4